66465440

素因数分解:

$2^5\times 5^1\times {\mathrm{415409}}^1$

素因数の和:415424

約数の個数: 24

約数和(自身を含む): 157024980

約数和(自身を除く): 90559540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 415409, 830818, 1661636, 2077045, 3323272, 4154090, 6646544, 8308180, 13293088, 16616360, 33232720, 66465440]

約数ペア:

[(1, 66465440), (2, 33232720), (4, 16616360), (5, 13293088), (8, 8308180), (10, 6646544), (16, 4154090), (20, 3323272), (32, 2077045), (40, 1661636), (80, 830818), (160, 415409)]